code / tomo-koans

   1 # Assertions
   2 
   3 func main()
   4     # Assertions can be used to check that a
   5     # value is what you expect it to be:
   6 
   7     assert 1 + 1 == 2
   8 
   9     # For debugging purposes, you can use `>>`
  10     # to print out a value:
  11     >> 20 + 30
  12 
  13     # If a docstring test's output is different
  14     # from what was expected, it will print an
  15     # error message and halt the program.
  16 
  17     # Edit this test so it passes:
  18     assert 2 + 2 == ???